Tuning hammer



r tested Nomi-7,119 2 8 A a Z I i a I 1,693,292

v UNITED" STATES PATENT OFFICE.

1 WILLIAM Fm mmmem, or nos ANGELES, CALIFORNIA.

i I [TUNING HAMMER.

Application filed October 21,1926. Serial No. 143,200,

My invention relates to piano tuning hamhammer incident to the turning of a piano mers, which, as heretofore designed, do not pin. The location of the socket 18 in the provide suflicient leverage to turn a tuning elbow is such that the shank 20 is disposed 5o 7 pin without flexing it, so that the pin in re substantially at a tangent with respect to the 5Vturning to its normal position following peripheryof the head 15.

flexing thereof loses its precise adjustment, The elbow 17, in its association with the thusnecessitatingfurther adjustment to se head and the shank 20, provides a concure accurate tuning ofthe corresponding ncction between these two parts which bestring. Further, the flexing of the pin also cause of its lateral arrangement with re- 10 renders the turning thereof more diificult spect to the head increases the effective leand uncertain as to the precise amount, and verag'e of the shank 20 when operating the it enlarges the hole in'the pin block, thereby latter through the medium of the handle causing loosening of the pin soithat it does when turning the head 15 on a piano pin. not maintain its adjustment. I The tuning hammer constructed in accord 15 It isa purpose of my inventionto provide ance with my invent-ionprovides suflicient a tuning hammer which overcomes the dis levera e to turn the pin without flexing the advantages of other hammers and greatly latter, thereby eliminating the disadvantages facilitates the ease and accuracy with which previously pointed out and permitting a a. pin can be adjusted to effect accurate tunready adjustment of the pin with an ease and 20 ing of the piano string. accuracy impossible with tuning hammers I will describe only one form of tuning in which the shanks are threaded or otherhammer embodying my invention and Will wise connected directly to the head 15.

then point out the novel features thereof in Although I have hereinshown and dei claims. 1 scribed only one form of tuning hammer em- 25 In the accompanying drawing, bodying my invention, it is to be understood Figure 1 is a view showing in top plan one that various changes and modifications there- ;form of tuning hammer embodying my m of may be made without departing from the vention with a portion thereof in section to spirit of the invention and the spirit and 7 5 reveal the connection between the shank and scope of the appended claims.

elbow of. the hammer; I claim as my invention:

Figure 2 1s a view, showing the hammer n 1. A tumng hammer comprlsing a head side elevation and partly in section; 1. having a socket in one end and an elbow on 1 Figure 3 isa View showing the hammer theother,and an operating shank connected so :in end elevation. v to the elbow at one side of the head and ex- In the drawings, 15 designates ahead havtending substantially at right angles from ing a socket 16 in its lower end in which is the elbow.

adapted to be received the squared end ofa 2. A tuning hammer comprising a head.

tuning pin (not shown). The upper end of having a socket in one end and an elbow on the head is provided with a lateral extension the other, a socket in the elbow at one side of 4 in the form of an elbow 17, this elbow as the head, and a shank extending into and shown in Figure 1 being provided with a secured within the socket so as to extend socket 18 screw-threaded to receive the substantially at right angles from the elbow.

threaded end 19 of an elongated shank 20. A tuning hammer head having a socket The parts of the hammer thus far described in one end and'an elbow on the other end havare preferably formed of metal, and the outer ing a socket at one side of the head in which end of the shank 20 carries a handle 21 which a shank is adapted to be received.

is adapted to he grippedv in operating the WILLIAM FRAUEN BERGER. 

